Answer:
76 ft
Step-by-step explanation:
Use the circumference formula, C = 2r
Plug in the radius:
C = 2r
C = 2(12.1)
C = 76.0
So, the circumference is 76 ft
Look up the equation for it
Answer:
53.5
Step-by-step explanation:
y= 1.25x+6.75
Make 31.75 y because that is the total cost he paid.
1.25x+6.75=31.75
1.25x=25
x=20
So he had 20 refills.
Answer:
D h(x) = f(x)×g(x)
Step-by-step explanation:
h(x) has a wave with 2 changes in direction.
so, this needs to be an expression of the third degree (there must be a term with x³ as the highest power of x).
and that is only possible when multiplying both basic functions. all the other options would keep it at second degree (x²) or render it even to a first degree (linear).